The reason why the fever does not subside is because of the body’s immune response to viral infection, which is a defense mechanism of the body, but too high a temperature is not good for the body and requires medication, life intervention, antiviral therapy, etc., as follows: 1, medication: the need to use antipyretic drugs to symptomatic treatment, commonly used such as ibuprofen suspension, acetaminophen, etc., can be repeated at intervals. The patient should pay attention to appropriate rehydration, drink more water, pay attention to rest, and ventilation. 3, antiviral treatment: there are also patients with chickenpox is more serious, there will be viral pneumonia or viral myocarditis, etc., need to be hospitalized, need to use strong antiviral drugs, such as acyclovir, etc., only then the condition can be controlled, the body temperature will gradually drop.